Test of Grocery Shopping Skills: Discrimination of People with and without Mental Illness

Abstract The Test of Grocery Shopping Skills (TOGSS) is a performance measure of shopping ability in a grocery store that requires complex cognitive skills. The present study examines the validity of the TOGSS by comparing performance of two groups with significant cognitive impairments i.e., individuals who have schizophrenia or bipolar disorders and meet the criteria for serious mental illness (SMI), with a normative population. Individuals in the normative group took less time and showed less redundancy in the completing the task than individuals with schizophrenia or bipolar disorder. There was no difference between groups on accuracy of finding items.